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An unusual complex has been observed between the common electrophoresis tracer bromophenol blue (BPB) and the cytochrome c' from Chromatium vinosum during polyacrylamide gel electrophoresis. Complex formation results in a shift and increase in the intensity of the visible absorption band of BPB. Differential spectrophotometric titration of BPB with(More)
Calmodulin-dependent cyclic nucleotide phosphodiesterase was identified in and purified to apparent homogeneity from the total calmodulin-binding protein fraction of bovine eye in a single step by immunoaffinity chromatography. The bovine eye calmodulin-dependent cyclic nucleotide phosphodiesterase is immunologically similar to the bovine brain 60-kDa(More)
Three new macrocyclic diterpenoids, euphoscopoids A - C (1 - 3), including two new jatrophanes and a new lathyrane, were isolated from the whole plant of Euphorbia helioscopia. Their structures were elucidated by spectroscopic methods. Antifeedant and cytotoxic activities of these isolates were evaluated. All compounds showed significant antifeedant(More)
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